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Finding the Fourth Proportional to 396,940.70, 595,321.28 and 183,591.55

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Solution

The fourth proportional to 396,940.70, 595,321.28 and 183,591.55 is: 275,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,940.70 : 595,321.28 = 183,591.55 : x
  2. Step 2: Convert to fraction form
    396,940.70/595,321.28 = 183,591.55/x
  3. Step 3: Cross multiply
    396,940.70x = 595,321.28 × 183,591.55
  4. Step 4: Simplify right side
    396,940.70x = 109,295,953,709.16
  5. Step 5: Solve for x
    x = 109,295,953,709.16/396,940.70
  6. Step 6: Final answer
    x = 275,345.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.